To provide a preload inspection method of a wheel bearing device which can further enhance reliability when determining the adaptability of a preload.SOLUTION: A preload inspection method comprises: a process S02 of pressure-inserting an inner ring 4 into a small-diameter step part 3a; a process S03 of calculating a first bearing preload value P1 on the basis of a negative clearance G1 in an axial direction; a process S05 of measuring post pressure-insertion rotation torque Ta; a process S06 of forming a caulking part 3h by caulking the small-diameter step part to the inner ring; a caulking processing degree measurement process S07 of measuring a height dimension h and an outside-diameter dimension r of the caulking part; a process S08 of measuring post-caulking rotation torque Tb; a process S09 of calculating a second bearing preload value P2 by adding a preload change amount ΔP based on differential torque ΔT to the first bearing preload value; a first determination process S10 of determining the adaptability of the preload by a determination whether or not the second bearing preload value is within a reference value; and a second determination process S11 of determining the presence or absence of a caulking abnormality by collating the height dimension, the outside-diameter dimension and a value of the differential torque.SELECTED DRAWING: Figure 2
【課題】予圧の適否を判定した際の信頼度をさらに高めることができる車輪用軸受装置の予圧検査方法を提供する。【解決手段】予圧検査方法は、内輪4を小径段部3aに圧入する工程S02と、軸方向負隙間G1に基づき第1の軸受予圧値P1を算出する工程S03と、圧入後回転トルクTaを測定する工程S05と、小径段部を内輪に加締めて加締部3hを形成する工程S06と、加締部の高さ寸法hおよび外径寸法rを測定する加締加工度測定工程S07と、加締後回転トルクTbを測定する工程S08と、差分トルクΔTに基づいた予圧変化量ΔPを第1の軸受予圧値に加えて第2の軸受予圧値P2を算出する工程S09と、第2の軸受予圧値が基準値の範囲内であるか否かにより予圧の適否を判定する第1の判定工程S10と、高さ寸法および外径寸法と差分トルクの値とを照合して加締異常の有無を判定する第2の判定工程S11とを備える。【選択図】図2
PRELOAD INSPECTION METHOD OF WHEEL BEARING DEVICE
車輪用軸受装置の予圧検査方法
2022-03-10
Patent
Elektronische Ressource
Japanisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16C SHAFTS , Wellen / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE |